installation
19
WARNING
Before performing any work on the boiler, fi rst
disconnect it from the electrical power supply using the
external bipolar switch.
Electrical connections
For increased safety, ask a qualifi ed technician to perform a
thorough check of the electrical system.
The manufacturer is not responsible for any damage caused by the
lack of a suitable earthing system or by the malfunctioning of the
electricity mains supply.
Make sure that the system is able to withstand the maximum
power absorbed by the boiler (this is indicated on the appliance
data plate). Check that the section of the wires is suitable and is not
less 1,5 mm
2
The appliance must be connected to an effi
ecient earthing system
if it is to operate correctly.
The power supply cable must be connected to a 230V-50Hz
network, where the L-N poles and the earth connection are all
respected.
Important!
In the event that the power supply cable must be changed, replace
it with specifi que cable supply by ARISTON.
Important!
Connection to the electricity mains supply must be
performed using a fi xed connection (not with a mobile
plug) and a bipolar switch with a minimum contact
opening of 3 mm must be fi tted.
The use of multiplugs, extension leads or adaptors is strictly
prohibited.
It is strictly forbidden to use the piping from the hydraulic, heating
and gas systems for the appliance earthing connection.
The boiler is not protected against the eff ects caused by lightning. If the
mains fuses need to be replaced, use 2A rapid fuses.
WARNING
For the connection and positioning of the wires belonging to
optional peripheral units, please refer to the advice relating to
the installation of these units.
H05V2V2-F
60
N
L
Peripheral unit connection
To access peripheral unit connections carry out the following steps:
- Disconnect the boiler from the power supply
- Remove the casing by unhooking it from the instrument panel
- Rotate the control panel while pulling it forwards
- Unhook the two clips “a”, rotate the cover “b” to have access to
the peripherical connections
- Unscrew the two screws “c” and remove the cover “d” of the
instrument panel to have access to the main P.C.B.
Peripheral connections:
BUS =
Remote control connection (modulating device)
FLOOR/ TA2 =
the underfl oor heating thermostat or the room
thermostat 2
(selected via parameter 223 - factory setting =
underfl oor heating thermostat)
SE =
Outdoor sensor - OPTION
TNK
= Tank temperature probe
SOL =
Solar temperature probe
TA1 =
Room thermostat 1
a
b
c
d
BUS
T
B
FLOOR
TA2
SE
TNK
SOL TA1
CN1
OK
Sensys
1
2
3
4
5
6
7
Remote Control
External Sensor
Room Thermostat 1
Tank Sensor